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95ea3627 ID |
1 | /* |
2 | Copyright (C) 2004 - 2007 rt2x00 SourceForge Project | |
3 | <http://rt2x00.serialmonkey.com> | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the | |
17 | Free Software Foundation, Inc., | |
18 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | */ | |
20 | ||
21 | /* | |
22 | Module: rt2400pci | |
23 | Abstract: rt2400pci device specific routines. | |
24 | Supported chipsets: RT2460. | |
25 | */ | |
26 | ||
27 | /* | |
28 | * Set enviroment defines for rt2x00.h | |
29 | */ | |
30 | #define DRV_NAME "rt2400pci" | |
31 | ||
32 | #include <linux/delay.h> | |
33 | #include <linux/etherdevice.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/kernel.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/eeprom_93cx6.h> | |
39 | ||
40 | #include "rt2x00.h" | |
41 | #include "rt2x00pci.h" | |
42 | #include "rt2400pci.h" | |
43 | ||
44 | /* | |
45 | * Register access. | |
46 | * All access to the CSR registers will go through the methods | |
47 | * rt2x00pci_register_read and rt2x00pci_register_write. | |
48 | * BBP and RF register require indirect register access, | |
49 | * and use the CSR registers BBPCSR and RFCSR to achieve this. | |
50 | * These indirect registers work with busy bits, | |
51 | * and we will try maximal REGISTER_BUSY_COUNT times to access | |
52 | * the register while taking a REGISTER_BUSY_DELAY us delay | |
53 | * between each attampt. When the busy bit is still set at that time, | |
54 | * the access attempt is considered to have failed, | |
55 | * and we will print an error. | |
56 | */ | |
57 | static u32 rt2400pci_bbp_check(const struct rt2x00_dev *rt2x00dev) | |
58 | { | |
59 | u32 reg; | |
60 | unsigned int i; | |
61 | ||
62 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { | |
63 | rt2x00pci_register_read(rt2x00dev, BBPCSR, ®); | |
64 | if (!rt2x00_get_field32(reg, BBPCSR_BUSY)) | |
65 | break; | |
66 | udelay(REGISTER_BUSY_DELAY); | |
67 | } | |
68 | ||
69 | return reg; | |
70 | } | |
71 | ||
72 | static void rt2400pci_bbp_write(const struct rt2x00_dev *rt2x00dev, | |
73 | const unsigned int word, const u8 value) | |
74 | { | |
75 | u32 reg; | |
76 | ||
77 | /* | |
78 | * Wait until the BBP becomes ready. | |
79 | */ | |
80 | reg = rt2400pci_bbp_check(rt2x00dev); | |
81 | if (rt2x00_get_field32(reg, BBPCSR_BUSY)) { | |
82 | ERROR(rt2x00dev, "BBPCSR register busy. Write failed.\n"); | |
83 | return; | |
84 | } | |
85 | ||
86 | /* | |
87 | * Write the data into the BBP. | |
88 | */ | |
89 | reg = 0; | |
90 | rt2x00_set_field32(®, BBPCSR_VALUE, value); | |
91 | rt2x00_set_field32(®, BBPCSR_REGNUM, word); | |
92 | rt2x00_set_field32(®, BBPCSR_BUSY, 1); | |
93 | rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 1); | |
94 | ||
95 | rt2x00pci_register_write(rt2x00dev, BBPCSR, reg); | |
96 | } | |
97 | ||
98 | static void rt2400pci_bbp_read(const struct rt2x00_dev *rt2x00dev, | |
99 | const unsigned int word, u8 *value) | |
100 | { | |
101 | u32 reg; | |
102 | ||
103 | /* | |
104 | * Wait until the BBP becomes ready. | |
105 | */ | |
106 | reg = rt2400pci_bbp_check(rt2x00dev); | |
107 | if (rt2x00_get_field32(reg, BBPCSR_BUSY)) { | |
108 | ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n"); | |
109 | return; | |
110 | } | |
111 | ||
112 | /* | |
113 | * Write the request into the BBP. | |
114 | */ | |
115 | reg = 0; | |
116 | rt2x00_set_field32(®, BBPCSR_REGNUM, word); | |
117 | rt2x00_set_field32(®, BBPCSR_BUSY, 1); | |
118 | rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 0); | |
119 | ||
120 | rt2x00pci_register_write(rt2x00dev, BBPCSR, reg); | |
121 | ||
122 | /* | |
123 | * Wait until the BBP becomes ready. | |
124 | */ | |
125 | reg = rt2400pci_bbp_check(rt2x00dev); | |
126 | if (rt2x00_get_field32(reg, BBPCSR_BUSY)) { | |
127 | ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n"); | |
128 | *value = 0xff; | |
129 | return; | |
130 | } | |
131 | ||
132 | *value = rt2x00_get_field32(reg, BBPCSR_VALUE); | |
133 | } | |
134 | ||
135 | static void rt2400pci_rf_write(const struct rt2x00_dev *rt2x00dev, | |
136 | const unsigned int word, const u32 value) | |
137 | { | |
138 | u32 reg; | |
139 | unsigned int i; | |
140 | ||
141 | if (!word) | |
142 | return; | |
143 | ||
144 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { | |
145 | rt2x00pci_register_read(rt2x00dev, RFCSR, ®); | |
146 | if (!rt2x00_get_field32(reg, RFCSR_BUSY)) | |
147 | goto rf_write; | |
148 | udelay(REGISTER_BUSY_DELAY); | |
149 | } | |
150 | ||
151 | ERROR(rt2x00dev, "RFCSR register busy. Write failed.\n"); | |
152 | return; | |
153 | ||
154 | rf_write: | |
155 | reg = 0; | |
156 | rt2x00_set_field32(®, RFCSR_VALUE, value); | |
157 | rt2x00_set_field32(®, RFCSR_NUMBER_OF_BITS, 20); | |
158 | rt2x00_set_field32(®, RFCSR_IF_SELECT, 0); | |
159 | rt2x00_set_field32(®, RFCSR_BUSY, 1); | |
160 | ||
161 | rt2x00pci_register_write(rt2x00dev, RFCSR, reg); | |
162 | rt2x00_rf_write(rt2x00dev, word, value); | |
163 | } | |
164 | ||
165 | static void rt2400pci_eepromregister_read(struct eeprom_93cx6 *eeprom) | |
166 | { | |
167 | struct rt2x00_dev *rt2x00dev = eeprom->data; | |
168 | u32 reg; | |
169 | ||
170 | rt2x00pci_register_read(rt2x00dev, CSR21, ®); | |
171 | ||
172 | eeprom->reg_data_in = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_IN); | |
173 | eeprom->reg_data_out = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_OUT); | |
174 | eeprom->reg_data_clock = | |
175 | !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_CLOCK); | |
176 | eeprom->reg_chip_select = | |
177 | !!rt2x00_get_field32(reg, CSR21_EEPROM_CHIP_SELECT); | |
178 | } | |
179 | ||
180 | static void rt2400pci_eepromregister_write(struct eeprom_93cx6 *eeprom) | |
181 | { | |
182 | struct rt2x00_dev *rt2x00dev = eeprom->data; | |
183 | u32 reg = 0; | |
184 | ||
185 | rt2x00_set_field32(®, CSR21_EEPROM_DATA_IN, !!eeprom->reg_data_in); | |
186 | rt2x00_set_field32(®, CSR21_EEPROM_DATA_OUT, !!eeprom->reg_data_out); | |
187 | rt2x00_set_field32(®, CSR21_EEPROM_DATA_CLOCK, | |
188 | !!eeprom->reg_data_clock); | |
189 | rt2x00_set_field32(®, CSR21_EEPROM_CHIP_SELECT, | |
190 | !!eeprom->reg_chip_select); | |
191 | ||
192 | rt2x00pci_register_write(rt2x00dev, CSR21, reg); | |
193 | } | |
194 | ||
195 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS | |
196 | #define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u32)) ) | |
197 | ||
198 | static void rt2400pci_read_csr(const struct rt2x00_dev *rt2x00dev, | |
199 | const unsigned int word, u32 *data) | |
200 | { | |
201 | rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data); | |
202 | } | |
203 | ||
204 | static void rt2400pci_write_csr(const struct rt2x00_dev *rt2x00dev, | |
205 | const unsigned int word, u32 data) | |
206 | { | |
207 | rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), data); | |
208 | } | |
209 | ||
210 | static const struct rt2x00debug rt2400pci_rt2x00debug = { | |
211 | .owner = THIS_MODULE, | |
212 | .csr = { | |
213 | .read = rt2400pci_read_csr, | |
214 | .write = rt2400pci_write_csr, | |
215 | .word_size = sizeof(u32), | |
216 | .word_count = CSR_REG_SIZE / sizeof(u32), | |
217 | }, | |
218 | .eeprom = { | |
219 | .read = rt2x00_eeprom_read, | |
220 | .write = rt2x00_eeprom_write, | |
221 | .word_size = sizeof(u16), | |
222 | .word_count = EEPROM_SIZE / sizeof(u16), | |
223 | }, | |
224 | .bbp = { | |
225 | .read = rt2400pci_bbp_read, | |
226 | .write = rt2400pci_bbp_write, | |
227 | .word_size = sizeof(u8), | |
228 | .word_count = BBP_SIZE / sizeof(u8), | |
229 | }, | |
230 | .rf = { | |
231 | .read = rt2x00_rf_read, | |
232 | .write = rt2400pci_rf_write, | |
233 | .word_size = sizeof(u32), | |
234 | .word_count = RF_SIZE / sizeof(u32), | |
235 | }, | |
236 | }; | |
237 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ | |
238 | ||
239 | #ifdef CONFIG_RT2400PCI_RFKILL | |
240 | static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) | |
241 | { | |
242 | u32 reg; | |
243 | ||
244 | rt2x00pci_register_read(rt2x00dev, GPIOCSR, ®); | |
245 | return rt2x00_get_field32(reg, GPIOCSR_BIT0); | |
246 | } | |
81873e9c ID |
247 | #else |
248 | #define rt2400pci_rfkill_poll NULL | |
95ea3627 ID |
249 | #endif /* CONFIG_RT2400PCI_RFKILL */ |
250 | ||
251 | /* | |
252 | * Configuration handlers. | |
253 | */ | |
4abee4bb ID |
254 | static void rt2400pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, |
255 | __le32 *mac) | |
95ea3627 | 256 | { |
4abee4bb ID |
257 | rt2x00pci_register_multiwrite(rt2x00dev, CSR3, mac, |
258 | (2 * sizeof(__le32))); | |
95ea3627 ID |
259 | } |
260 | ||
4abee4bb ID |
261 | static void rt2400pci_config_bssid(struct rt2x00_dev *rt2x00dev, |
262 | __le32 *bssid) | |
95ea3627 | 263 | { |
4abee4bb ID |
264 | rt2x00pci_register_multiwrite(rt2x00dev, CSR5, bssid, |
265 | (2 * sizeof(__le32))); | |
95ea3627 ID |
266 | } |
267 | ||
feb24691 ID |
268 | static void rt2400pci_config_type(struct rt2x00_dev *rt2x00dev, const int type, |
269 | const int tsf_sync) | |
95ea3627 ID |
270 | { |
271 | u32 reg; | |
272 | ||
273 | rt2x00pci_register_write(rt2x00dev, CSR14, 0); | |
274 | ||
95ea3627 ID |
275 | /* |
276 | * Enable beacon config | |
277 | */ | |
278 | rt2x00pci_register_read(rt2x00dev, BCNCSR1, ®); | |
279 | rt2x00_set_field32(®, BCNCSR1_PRELOAD, | |
a137e202 | 280 | PREAMBLE + get_duration(IEEE80211_HEADER, 20)); |
95ea3627 ID |
281 | rt2x00pci_register_write(rt2x00dev, BCNCSR1, reg); |
282 | ||
283 | /* | |
284 | * Enable synchronisation. | |
285 | */ | |
286 | rt2x00pci_register_read(rt2x00dev, CSR14, ®); | |
4150c572 JB |
287 | rt2x00_set_field32(®, CSR14_TSF_COUNT, 1); |
288 | rt2x00_set_field32(®, CSR14_TBCN, 1); | |
95ea3627 | 289 | rt2x00_set_field32(®, CSR14_BEACON_GEN, 0); |
feb24691 | 290 | rt2x00_set_field32(®, CSR14_TSF_SYNC, tsf_sync); |
95ea3627 ID |
291 | rt2x00pci_register_write(rt2x00dev, CSR14, reg); |
292 | } | |
293 | ||
294 | static void rt2400pci_config_rate(struct rt2x00_dev *rt2x00dev, const int rate) | |
295 | { | |
296 | struct ieee80211_conf *conf = &rt2x00dev->hw->conf; | |
297 | u32 reg; | |
298 | u32 preamble; | |
299 | u16 value; | |
300 | ||
301 | if (DEVICE_GET_RATE_FIELD(rate, PREAMBLE)) | |
302 | preamble = SHORT_PREAMBLE; | |
303 | else | |
304 | preamble = PREAMBLE; | |
305 | ||
306 | reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATEMASK; | |
307 | rt2x00pci_register_write(rt2x00dev, ARCSR1, reg); | |
308 | ||
309 | rt2x00pci_register_read(rt2x00dev, TXCSR1, ®); | |
310 | value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ? | |
311 | SHORT_DIFS : DIFS) + | |
312 | PLCP + preamble + get_duration(ACK_SIZE, 10); | |
313 | rt2x00_set_field32(®, TXCSR1_ACK_TIMEOUT, value); | |
314 | value = SIFS + PLCP + preamble + get_duration(ACK_SIZE, 10); | |
315 | rt2x00_set_field32(®, TXCSR1_ACK_CONSUME_TIME, value); | |
316 | rt2x00pci_register_write(rt2x00dev, TXCSR1, reg); | |
317 | ||
318 | preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE) ? 0x08 : 0x00; | |
319 | ||
320 | rt2x00pci_register_read(rt2x00dev, ARCSR2, ®); | |
321 | rt2x00_set_field32(®, ARCSR2_SIGNAL, 0x00 | preamble); | |
322 | rt2x00_set_field32(®, ARCSR2_SERVICE, 0x04); | |
323 | rt2x00_set_field32(®, ARCSR2_LENGTH, get_duration(ACK_SIZE, 10)); | |
324 | rt2x00pci_register_write(rt2x00dev, ARCSR2, reg); | |
325 | ||
326 | rt2x00pci_register_read(rt2x00dev, ARCSR3, ®); | |
327 | rt2x00_set_field32(®, ARCSR3_SIGNAL, 0x01 | preamble); | |
328 | rt2x00_set_field32(®, ARCSR3_SERVICE, 0x04); | |
329 | rt2x00_set_field32(®, ARCSR2_LENGTH, get_duration(ACK_SIZE, 20)); | |
330 | rt2x00pci_register_write(rt2x00dev, ARCSR3, reg); | |
331 | ||
332 | rt2x00pci_register_read(rt2x00dev, ARCSR4, ®); | |
333 | rt2x00_set_field32(®, ARCSR4_SIGNAL, 0x02 | preamble); | |
334 | rt2x00_set_field32(®, ARCSR4_SERVICE, 0x04); | |
335 | rt2x00_set_field32(®, ARCSR2_LENGTH, get_duration(ACK_SIZE, 55)); | |
336 | rt2x00pci_register_write(rt2x00dev, ARCSR4, reg); | |
337 | ||
338 | rt2x00pci_register_read(rt2x00dev, ARCSR5, ®); | |
339 | rt2x00_set_field32(®, ARCSR5_SIGNAL, 0x03 | preamble); | |
340 | rt2x00_set_field32(®, ARCSR5_SERVICE, 0x84); | |
341 | rt2x00_set_field32(®, ARCSR2_LENGTH, get_duration(ACK_SIZE, 110)); | |
342 | rt2x00pci_register_write(rt2x00dev, ARCSR5, reg); | |
343 | } | |
344 | ||
345 | static void rt2400pci_config_phymode(struct rt2x00_dev *rt2x00dev, | |
346 | const int phymode) | |
347 | { | |
348 | struct ieee80211_hw_mode *mode; | |
349 | struct ieee80211_rate *rate; | |
350 | ||
351 | rt2x00dev->curr_hwmode = HWMODE_B; | |
352 | ||
353 | mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode]; | |
354 | rate = &mode->rates[mode->num_rates - 1]; | |
355 | ||
356 | rt2400pci_config_rate(rt2x00dev, rate->val2); | |
357 | } | |
358 | ||
359 | static void rt2400pci_config_channel(struct rt2x00_dev *rt2x00dev, | |
360 | const int index, const int channel) | |
361 | { | |
362 | struct rf_channel reg; | |
363 | ||
364 | /* | |
365 | * Fill rf_reg structure. | |
366 | */ | |
367 | memcpy(®, &rt2x00dev->spec.channels[index], sizeof(reg)); | |
368 | ||
369 | /* | |
370 | * Switch on tuning bits. | |
371 | */ | |
372 | rt2x00_set_field32(®.rf1, RF1_TUNER, 1); | |
373 | rt2x00_set_field32(®.rf3, RF3_TUNER, 1); | |
374 | ||
375 | rt2400pci_rf_write(rt2x00dev, 1, reg.rf1); | |
376 | rt2400pci_rf_write(rt2x00dev, 2, reg.rf2); | |
377 | rt2400pci_rf_write(rt2x00dev, 3, reg.rf3); | |
378 | ||
379 | /* | |
380 | * RF2420 chipset don't need any additional actions. | |
381 | */ | |
382 | if (rt2x00_rf(&rt2x00dev->chip, RF2420)) | |
383 | return; | |
384 | ||
385 | /* | |
386 | * For the RT2421 chipsets we need to write an invalid | |
387 | * reference clock rate to activate auto_tune. | |
388 | * After that we set the value back to the correct channel. | |
389 | */ | |
390 | rt2400pci_rf_write(rt2x00dev, 1, reg.rf1); | |
391 | rt2400pci_rf_write(rt2x00dev, 2, 0x000c2a32); | |
392 | rt2400pci_rf_write(rt2x00dev, 3, reg.rf3); | |
393 | ||
394 | msleep(1); | |
395 | ||
396 | rt2400pci_rf_write(rt2x00dev, 1, reg.rf1); | |
397 | rt2400pci_rf_write(rt2x00dev, 2, reg.rf2); | |
398 | rt2400pci_rf_write(rt2x00dev, 3, reg.rf3); | |
399 | ||
400 | msleep(1); | |
401 | ||
402 | /* | |
403 | * Switch off tuning bits. | |
404 | */ | |
405 | rt2x00_set_field32(®.rf1, RF1_TUNER, 0); | |
406 | rt2x00_set_field32(®.rf3, RF3_TUNER, 0); | |
407 | ||
408 | rt2400pci_rf_write(rt2x00dev, 1, reg.rf1); | |
409 | rt2400pci_rf_write(rt2x00dev, 3, reg.rf3); | |
410 | ||
411 | /* | |
412 | * Clear false CRC during channel switch. | |
413 | */ | |
414 | rt2x00pci_register_read(rt2x00dev, CNT0, ®.rf1); | |
415 | } | |
416 | ||
417 | static void rt2400pci_config_txpower(struct rt2x00_dev *rt2x00dev, int txpower) | |
418 | { | |
419 | rt2400pci_bbp_write(rt2x00dev, 3, TXPOWER_TO_DEV(txpower)); | |
420 | } | |
421 | ||
422 | static void rt2400pci_config_antenna(struct rt2x00_dev *rt2x00dev, | |
423 | int antenna_tx, int antenna_rx) | |
424 | { | |
425 | u8 r1; | |
426 | u8 r4; | |
427 | ||
428 | rt2400pci_bbp_read(rt2x00dev, 4, &r4); | |
429 | rt2400pci_bbp_read(rt2x00dev, 1, &r1); | |
430 | ||
431 | /* | |
432 | * Configure the TX antenna. | |
433 | */ | |
434 | switch (antenna_tx) { | |
435 | case ANTENNA_SW_DIVERSITY: | |
436 | case ANTENNA_HW_DIVERSITY: | |
437 | rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 1); | |
438 | break; | |
439 | case ANTENNA_A: | |
440 | rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 0); | |
441 | break; | |
442 | case ANTENNA_B: | |
443 | rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 2); | |
444 | break; | |
445 | } | |
446 | ||
447 | /* | |
448 | * Configure the RX antenna. | |
449 | */ | |
450 | switch (antenna_rx) { | |
451 | case ANTENNA_SW_DIVERSITY: | |
452 | case ANTENNA_HW_DIVERSITY: | |
453 | rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1); | |
454 | break; | |
455 | case ANTENNA_A: | |
456 | rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 0); | |
457 | break; | |
458 | case ANTENNA_B: | |
459 | rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2); | |
460 | break; | |
461 | } | |
462 | ||
463 | rt2400pci_bbp_write(rt2x00dev, 4, r4); | |
464 | rt2400pci_bbp_write(rt2x00dev, 1, r1); | |
465 | } | |
466 | ||
467 | static void rt2400pci_config_duration(struct rt2x00_dev *rt2x00dev, | |
468 | int short_slot_time, int beacon_int) | |
469 | { | |
470 | u32 reg; | |
471 | ||
472 | rt2x00pci_register_read(rt2x00dev, CSR11, ®); | |
473 | rt2x00_set_field32(®, CSR11_SLOT_TIME, | |
474 | short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME); | |
475 | rt2x00pci_register_write(rt2x00dev, CSR11, reg); | |
476 | ||
477 | rt2x00pci_register_read(rt2x00dev, CSR18, ®); | |
478 | rt2x00_set_field32(®, CSR18_SIFS, SIFS); | |
479 | rt2x00_set_field32(®, CSR18_PIFS, | |
480 | short_slot_time ? SHORT_PIFS : PIFS); | |
481 | rt2x00pci_register_write(rt2x00dev, CSR18, reg); | |
482 | ||
483 | rt2x00pci_register_read(rt2x00dev, CSR19, ®); | |
484 | rt2x00_set_field32(®, CSR19_DIFS, | |
485 | short_slot_time ? SHORT_DIFS : DIFS); | |
486 | rt2x00_set_field32(®, CSR19_EIFS, EIFS); | |
487 | rt2x00pci_register_write(rt2x00dev, CSR19, reg); | |
488 | ||
489 | rt2x00pci_register_read(rt2x00dev, TXCSR1, ®); | |
490 | rt2x00_set_field32(®, TXCSR1_TSF_OFFSET, IEEE80211_HEADER); | |
491 | rt2x00_set_field32(®, TXCSR1_AUTORESPONDER, 1); | |
492 | rt2x00pci_register_write(rt2x00dev, TXCSR1, reg); | |
493 | ||
494 | rt2x00pci_register_read(rt2x00dev, CSR12, ®); | |
495 | rt2x00_set_field32(®, CSR12_BEACON_INTERVAL, beacon_int * 16); | |
496 | rt2x00_set_field32(®, CSR12_CFP_MAX_DURATION, beacon_int * 16); | |
497 | rt2x00pci_register_write(rt2x00dev, CSR12, reg); | |
498 | } | |
499 | ||
500 | static void rt2400pci_config(struct rt2x00_dev *rt2x00dev, | |
501 | const unsigned int flags, | |
502 | struct ieee80211_conf *conf) | |
503 | { | |
504 | int short_slot_time = conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME; | |
505 | ||
506 | if (flags & CONFIG_UPDATE_PHYMODE) | |
507 | rt2400pci_config_phymode(rt2x00dev, conf->phymode); | |
508 | if (flags & CONFIG_UPDATE_CHANNEL) | |
509 | rt2400pci_config_channel(rt2x00dev, conf->channel_val, | |
510 | conf->channel); | |
511 | if (flags & CONFIG_UPDATE_TXPOWER) | |
512 | rt2400pci_config_txpower(rt2x00dev, conf->power_level); | |
513 | if (flags & CONFIG_UPDATE_ANTENNA) | |
514 | rt2400pci_config_antenna(rt2x00dev, conf->antenna_sel_tx, | |
515 | conf->antenna_sel_rx); | |
516 | if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT)) | |
517 | rt2400pci_config_duration(rt2x00dev, short_slot_time, | |
518 | conf->beacon_int); | |
519 | } | |
520 | ||
521 | static void rt2400pci_config_cw(struct rt2x00_dev *rt2x00dev, | |
522 | struct ieee80211_tx_queue_params *params) | |
523 | { | |
524 | u32 reg; | |
525 | ||
526 | rt2x00pci_register_read(rt2x00dev, CSR11, ®); | |
527 | rt2x00_set_field32(®, CSR11_CWMIN, params->cw_min); | |
528 | rt2x00_set_field32(®, CSR11_CWMAX, params->cw_max); | |
529 | rt2x00pci_register_write(rt2x00dev, CSR11, reg); | |
530 | } | |
531 | ||
532 | /* | |
533 | * LED functions. | |
534 | */ | |
535 | static void rt2400pci_enable_led(struct rt2x00_dev *rt2x00dev) | |
536 | { | |
537 | u32 reg; | |
538 | ||
539 | rt2x00pci_register_read(rt2x00dev, LEDCSR, ®); | |
540 | ||
541 | rt2x00_set_field32(®, LEDCSR_ON_PERIOD, 70); | |
542 | rt2x00_set_field32(®, LEDCSR_OFF_PERIOD, 30); | |
543 | ||
544 | if (rt2x00dev->led_mode == LED_MODE_TXRX_ACTIVITY) { | |
545 | rt2x00_set_field32(®, LEDCSR_LINK, 1); | |
546 | rt2x00_set_field32(®, LEDCSR_ACTIVITY, 0); | |
547 | } else if (rt2x00dev->led_mode == LED_MODE_ASUS) { | |
548 | rt2x00_set_field32(®, LEDCSR_LINK, 0); | |
549 | rt2x00_set_field32(®, LEDCSR_ACTIVITY, 1); | |
550 | } else { | |
551 | rt2x00_set_field32(®, LEDCSR_LINK, 1); | |
552 | rt2x00_set_field32(®, LEDCSR_ACTIVITY, 1); | |
553 | } | |
554 | ||
555 | rt2x00pci_register_write(rt2x00dev, LEDCSR, reg); | |
556 | } | |
557 | ||
558 | static void rt2400pci_disable_led(struct rt2x00_dev *rt2x00dev) | |
559 | { | |
560 | u32 reg; | |
561 | ||
562 | rt2x00pci_register_read(rt2x00dev, LEDCSR, ®); | |
563 | rt2x00_set_field32(®, LEDCSR_LINK, 0); | |
564 | rt2x00_set_field32(®, LEDCSR_ACTIVITY, 0); | |
565 | rt2x00pci_register_write(rt2x00dev, LEDCSR, reg); | |
566 | } | |
567 | ||
568 | /* | |
569 | * Link tuning | |
570 | */ | |
571 | static void rt2400pci_link_stats(struct rt2x00_dev *rt2x00dev) | |
572 | { | |
573 | u32 reg; | |
574 | u8 bbp; | |
575 | ||
576 | /* | |
577 | * Update FCS error count from register. | |
578 | */ | |
579 | rt2x00pci_register_read(rt2x00dev, CNT0, ®); | |
580 | rt2x00dev->link.rx_failed = rt2x00_get_field32(reg, CNT0_FCS_ERROR); | |
581 | ||
582 | /* | |
583 | * Update False CCA count from register. | |
584 | */ | |
585 | rt2400pci_bbp_read(rt2x00dev, 39, &bbp); | |
586 | rt2x00dev->link.false_cca = bbp; | |
587 | } | |
588 | ||
589 | static void rt2400pci_reset_tuner(struct rt2x00_dev *rt2x00dev) | |
590 | { | |
591 | rt2400pci_bbp_write(rt2x00dev, 13, 0x08); | |
592 | rt2x00dev->link.vgc_level = 0x08; | |
593 | } | |
594 | ||
595 | static void rt2400pci_link_tuner(struct rt2x00_dev *rt2x00dev) | |
596 | { | |
597 | u8 reg; | |
598 | ||
599 | /* | |
600 | * The link tuner should not run longer then 60 seconds, | |
601 | * and should run once every 2 seconds. | |
602 | */ | |
603 | if (rt2x00dev->link.count > 60 || !(rt2x00dev->link.count & 1)) | |
604 | return; | |
605 | ||
606 | /* | |
607 | * Base r13 link tuning on the false cca count. | |
608 | */ | |
609 | rt2400pci_bbp_read(rt2x00dev, 13, ®); | |
610 | ||
611 | if (rt2x00dev->link.false_cca > 512 && reg < 0x20) { | |
612 | rt2400pci_bbp_write(rt2x00dev, 13, ++reg); | |
613 | rt2x00dev->link.vgc_level = reg; | |
614 | } else if (rt2x00dev->link.false_cca < 100 && reg > 0x08) { | |
615 | rt2400pci_bbp_write(rt2x00dev, 13, --reg); | |
616 | rt2x00dev->link.vgc_level = reg; | |
617 | } | |
618 | } | |
619 | ||
620 | /* | |
621 | * Initialization functions. | |
622 | */ | |
623 | static void rt2400pci_init_rxring(struct rt2x00_dev *rt2x00dev) | |
624 | { | |
625 | struct data_ring *ring = rt2x00dev->rx; | |
626 | struct data_desc *rxd; | |
627 | unsigned int i; | |
628 | u32 word; | |
629 | ||
630 | memset(ring->data_addr, 0x00, rt2x00_get_ring_size(ring)); | |
631 | ||
632 | for (i = 0; i < ring->stats.limit; i++) { | |
633 | rxd = ring->entry[i].priv; | |
634 | ||
635 | rt2x00_desc_read(rxd, 2, &word); | |
636 | rt2x00_set_field32(&word, RXD_W2_BUFFER_LENGTH, | |
637 | ring->data_size); | |
638 | rt2x00_desc_write(rxd, 2, word); | |
639 | ||
640 | rt2x00_desc_read(rxd, 1, &word); | |
641 | rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, | |
642 | ring->entry[i].data_dma); | |
643 | rt2x00_desc_write(rxd, 1, word); | |
644 | ||
645 | rt2x00_desc_read(rxd, 0, &word); | |
646 | rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1); | |
647 | rt2x00_desc_write(rxd, 0, word); | |
648 | } | |
649 | ||
650 | rt2x00_ring_index_clear(rt2x00dev->rx); | |
651 | } | |
652 | ||
653 | static void rt2400pci_init_txring(struct rt2x00_dev *rt2x00dev, const int queue) | |
654 | { | |
655 | struct data_ring *ring = rt2x00lib_get_ring(rt2x00dev, queue); | |
656 | struct data_desc *txd; | |
657 | unsigned int i; | |
658 | u32 word; | |
659 | ||
660 | memset(ring->data_addr, 0x00, rt2x00_get_ring_size(ring)); | |
661 | ||
662 | for (i = 0; i < ring->stats.limit; i++) { | |
663 | txd = ring->entry[i].priv; | |
664 | ||
665 | rt2x00_desc_read(txd, 1, &word); | |
666 | rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, | |
667 | ring->entry[i].data_dma); | |
668 | rt2x00_desc_write(txd, 1, word); | |
669 | ||
670 | rt2x00_desc_read(txd, 2, &word); | |
671 | rt2x00_set_field32(&word, TXD_W2_BUFFER_LENGTH, | |
672 | ring->data_size); | |
673 | rt2x00_desc_write(txd, 2, word); | |
674 | ||
675 | rt2x00_desc_read(txd, 0, &word); | |
676 | rt2x00_set_field32(&word, TXD_W0_VALID, 0); | |
677 | rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0); | |
678 | rt2x00_desc_write(txd, 0, word); | |
679 | } | |
680 | ||
681 | rt2x00_ring_index_clear(ring); | |
682 | } | |
683 | ||
684 | static int rt2400pci_init_rings(struct rt2x00_dev *rt2x00dev) | |
685 | { | |
686 | u32 reg; | |
687 | ||
688 | /* | |
689 | * Initialize rings. | |
690 | */ | |
691 | rt2400pci_init_rxring(rt2x00dev); | |
692 | rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0); | |
693 | rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1); | |
694 | rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON); | |
695 | rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON); | |
696 | ||
697 | /* | |
698 | * Initialize registers. | |
699 | */ | |
700 | rt2x00pci_register_read(rt2x00dev, TXCSR2, ®); | |
701 | rt2x00_set_field32(®, TXCSR2_TXD_SIZE, | |
702 | rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].desc_size); | |
703 | rt2x00_set_field32(®, TXCSR2_NUM_TXD, | |
704 | rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].stats.limit); | |
705 | rt2x00_set_field32(®, TXCSR2_NUM_ATIM, | |
706 | rt2x00dev->bcn[1].stats.limit); | |
707 | rt2x00_set_field32(®, TXCSR2_NUM_PRIO, | |
708 | rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].stats.limit); | |
709 | rt2x00pci_register_write(rt2x00dev, TXCSR2, reg); | |
710 | ||
711 | rt2x00pci_register_read(rt2x00dev, TXCSR3, ®); | |
712 | rt2x00_set_field32(®, TXCSR3_TX_RING_REGISTER, | |
713 | rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].data_dma); | |
714 | rt2x00pci_register_write(rt2x00dev, TXCSR3, reg); | |
715 | ||
716 | rt2x00pci_register_read(rt2x00dev, TXCSR5, ®); | |
717 | rt2x00_set_field32(®, TXCSR5_PRIO_RING_REGISTER, | |
718 | rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].data_dma); | |
719 | rt2x00pci_register_write(rt2x00dev, TXCSR5, reg); | |
720 | ||
721 | rt2x00pci_register_read(rt2x00dev, TXCSR4, ®); | |
722 | rt2x00_set_field32(®, TXCSR4_ATIM_RING_REGISTER, | |
723 | rt2x00dev->bcn[1].data_dma); | |
724 | rt2x00pci_register_write(rt2x00dev, TXCSR4, reg); | |
725 | ||
726 | rt2x00pci_register_read(rt2x00dev, TXCSR6, ®); | |
727 | rt2x00_set_field32(®, TXCSR6_BEACON_RING_REGISTER, | |
728 | rt2x00dev->bcn[0].data_dma); | |
729 | rt2x00pci_register_write(rt2x00dev, TXCSR6, reg); | |
730 | ||
731 | rt2x00pci_register_read(rt2x00dev, RXCSR1, ®); | |
732 | rt2x00_set_field32(®, RXCSR1_RXD_SIZE, rt2x00dev->rx->desc_size); | |
733 | rt2x00_set_field32(®, RXCSR1_NUM_RXD, rt2x00dev->rx->stats.limit); | |
734 | rt2x00pci_register_write(rt2x00dev, RXCSR1, reg); | |
735 | ||
736 | rt2x00pci_register_read(rt2x00dev, RXCSR2, ®); | |
737 | rt2x00_set_field32(®, RXCSR2_RX_RING_REGISTER, | |
738 | rt2x00dev->rx->data_dma); | |
739 | rt2x00pci_register_write(rt2x00dev, RXCSR2, reg); | |
740 | ||
741 | return 0; | |
742 | } | |
743 | ||
744 | static int rt2400pci_init_registers(struct rt2x00_dev *rt2x00dev) | |
745 | { | |
746 | u32 reg; | |
747 | ||
748 | rt2x00pci_register_write(rt2x00dev, PSCSR0, 0x00020002); | |
749 | rt2x00pci_register_write(rt2x00dev, PSCSR1, 0x00000002); | |
750 | rt2x00pci_register_write(rt2x00dev, PSCSR2, 0x00023f20); | |
751 | rt2x00pci_register_write(rt2x00dev, PSCSR3, 0x00000002); | |
752 | ||
753 | rt2x00pci_register_read(rt2x00dev, TIMECSR, ®); | |
754 | rt2x00_set_field32(®, TIMECSR_US_COUNT, 33); | |
755 | rt2x00_set_field32(®, TIMECSR_US_64_COUNT, 63); | |
756 | rt2x00_set_field32(®, TIMECSR_BEACON_EXPECT, 0); | |
757 | rt2x00pci_register_write(rt2x00dev, TIMECSR, reg); | |
758 | ||
759 | rt2x00pci_register_read(rt2x00dev, CSR9, ®); | |
760 | rt2x00_set_field32(®, CSR9_MAX_FRAME_UNIT, | |
761 | (rt2x00dev->rx->data_size / 128)); | |
762 | rt2x00pci_register_write(rt2x00dev, CSR9, reg); | |
763 | ||
764 | rt2x00pci_register_write(rt2x00dev, CNT3, 0x3f080000); | |
765 | ||
766 | rt2x00pci_register_read(rt2x00dev, ARCSR0, ®); | |
767 | rt2x00_set_field32(®, ARCSR0_AR_BBP_DATA0, 133); | |
768 | rt2x00_set_field32(®, ARCSR0_AR_BBP_ID0, 134); | |
769 | rt2x00_set_field32(®, ARCSR0_AR_BBP_DATA1, 136); | |
770 | rt2x00_set_field32(®, ARCSR0_AR_BBP_ID1, 135); | |
771 | rt2x00pci_register_write(rt2x00dev, ARCSR0, reg); | |
772 | ||
773 | rt2x00pci_register_read(rt2x00dev, RXCSR3, ®); | |
774 | rt2x00_set_field32(®, RXCSR3_BBP_ID0, 3); /* Tx power.*/ | |
775 | rt2x00_set_field32(®, RXCSR3_BBP_ID0_VALID, 1); | |
776 | rt2x00_set_field32(®, RXCSR3_BBP_ID1, 32); /* Signal */ | |
777 | rt2x00_set_field32(®, RXCSR3_BBP_ID1_VALID, 1); | |
778 | rt2x00_set_field32(®, RXCSR3_BBP_ID2, 36); /* Rssi */ | |
779 | rt2x00_set_field32(®, RXCSR3_BBP_ID2_VALID, 1); | |
780 | rt2x00pci_register_write(rt2x00dev, RXCSR3, reg); | |
781 | ||
782 | rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0x3f3b3100); | |
783 | ||
784 | if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE)) | |
785 | return -EBUSY; | |
786 | ||
787 | rt2x00pci_register_write(rt2x00dev, MACCSR0, 0x00217223); | |
788 | rt2x00pci_register_write(rt2x00dev, MACCSR1, 0x00235518); | |
789 | ||
790 | rt2x00pci_register_read(rt2x00dev, MACCSR2, ®); | |
791 | rt2x00_set_field32(®, MACCSR2_DELAY, 64); | |
792 | rt2x00pci_register_write(rt2x00dev, MACCSR2, reg); | |
793 | ||
794 | rt2x00pci_register_read(rt2x00dev, RALINKCSR, ®); | |
795 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA0, 17); | |
796 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID0, 154); | |
797 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA1, 0); | |
798 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID1, 154); | |
799 | rt2x00pci_register_write(rt2x00dev, RALINKCSR, reg); | |
800 | ||
801 | rt2x00pci_register_read(rt2x00dev, CSR1, ®); | |
802 | rt2x00_set_field32(®, CSR1_SOFT_RESET, 1); | |
803 | rt2x00_set_field32(®, CSR1_BBP_RESET, 0); | |
804 | rt2x00_set_field32(®, CSR1_HOST_READY, 0); | |
805 | rt2x00pci_register_write(rt2x00dev, CSR1, reg); | |
806 | ||
807 | rt2x00pci_register_read(rt2x00dev, CSR1, ®); | |
808 | rt2x00_set_field32(®, CSR1_SOFT_RESET, 0); | |
809 | rt2x00_set_field32(®, CSR1_HOST_READY, 1); | |
810 | rt2x00pci_register_write(rt2x00dev, CSR1, reg); | |
811 | ||
812 | /* | |
813 | * We must clear the FCS and FIFO error count. | |
814 | * These registers are cleared on read, | |
815 | * so we may pass a useless variable to store the value. | |
816 | */ | |
817 | rt2x00pci_register_read(rt2x00dev, CNT0, ®); | |
818 | rt2x00pci_register_read(rt2x00dev, CNT4, ®); | |
819 | ||
820 | return 0; | |
821 | } | |
822 | ||
823 | static int rt2400pci_init_bbp(struct rt2x00_dev *rt2x00dev) | |
824 | { | |
825 | unsigned int i; | |
826 | u16 eeprom; | |
827 | u8 reg_id; | |
828 | u8 value; | |
829 | ||
830 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { | |
831 | rt2400pci_bbp_read(rt2x00dev, 0, &value); | |
832 | if ((value != 0xff) && (value != 0x00)) | |
833 | goto continue_csr_init; | |
834 | NOTICE(rt2x00dev, "Waiting for BBP register.\n"); | |
835 | udelay(REGISTER_BUSY_DELAY); | |
836 | } | |
837 | ||
838 | ERROR(rt2x00dev, "BBP register access failed, aborting.\n"); | |
839 | return -EACCES; | |
840 | ||
841 | continue_csr_init: | |
842 | rt2400pci_bbp_write(rt2x00dev, 1, 0x00); | |
843 | rt2400pci_bbp_write(rt2x00dev, 3, 0x27); | |
844 | rt2400pci_bbp_write(rt2x00dev, 4, 0x08); | |
845 | rt2400pci_bbp_write(rt2x00dev, 10, 0x0f); | |
846 | rt2400pci_bbp_write(rt2x00dev, 15, 0x72); | |
847 | rt2400pci_bbp_write(rt2x00dev, 16, 0x74); | |
848 | rt2400pci_bbp_write(rt2x00dev, 17, 0x20); | |
849 | rt2400pci_bbp_write(rt2x00dev, 18, 0x72); | |
850 | rt2400pci_bbp_write(rt2x00dev, 19, 0x0b); | |
851 | rt2400pci_bbp_write(rt2x00dev, 20, 0x00); | |
852 | rt2400pci_bbp_write(rt2x00dev, 28, 0x11); | |
853 | rt2400pci_bbp_write(rt2x00dev, 29, 0x04); | |
854 | rt2400pci_bbp_write(rt2x00dev, 30, 0x21); | |
855 | rt2400pci_bbp_write(rt2x00dev, 31, 0x00); | |
856 | ||
857 | DEBUG(rt2x00dev, "Start initialization from EEPROM...\n"); | |
858 | for (i = 0; i < EEPROM_BBP_SIZE; i++) { | |
859 | rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom); | |
860 | ||
861 | if (eeprom != 0xffff && eeprom != 0x0000) { | |
862 | reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID); | |
863 | value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE); | |
864 | DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n", | |
865 | reg_id, value); | |
866 | rt2400pci_bbp_write(rt2x00dev, reg_id, value); | |
867 | } | |
868 | } | |
869 | DEBUG(rt2x00dev, "...End initialization from EEPROM.\n"); | |
870 | ||
871 | return 0; | |
872 | } | |
873 | ||
874 | /* | |
875 | * Device state switch handlers. | |
876 | */ | |
877 | static void rt2400pci_toggle_rx(struct rt2x00_dev *rt2x00dev, | |
878 | enum dev_state state) | |
879 | { | |
880 | u32 reg; | |
881 | ||
882 | rt2x00pci_register_read(rt2x00dev, RXCSR0, ®); | |
883 | rt2x00_set_field32(®, RXCSR0_DISABLE_RX, | |
884 | state == STATE_RADIO_RX_OFF); | |
885 | rt2x00pci_register_write(rt2x00dev, RXCSR0, reg); | |
886 | } | |
887 | ||
888 | static void rt2400pci_toggle_irq(struct rt2x00_dev *rt2x00dev, | |
889 | enum dev_state state) | |
890 | { | |
891 | int mask = (state == STATE_RADIO_IRQ_OFF); | |
892 | u32 reg; | |
893 | ||
894 | /* | |
895 | * When interrupts are being enabled, the interrupt registers | |
896 | * should clear the register to assure a clean state. | |
897 | */ | |
898 | if (state == STATE_RADIO_IRQ_ON) { | |
899 | rt2x00pci_register_read(rt2x00dev, CSR7, ®); | |
900 | rt2x00pci_register_write(rt2x00dev, CSR7, reg); | |
901 | } | |
902 | ||
903 | /* | |
904 | * Only toggle the interrupts bits we are going to use. | |
905 | * Non-checked interrupt bits are disabled by default. | |
906 | */ | |
907 | rt2x00pci_register_read(rt2x00dev, CSR8, ®); | |
908 | rt2x00_set_field32(®, CSR8_TBCN_EXPIRE, mask); | |
909 | rt2x00_set_field32(®, CSR8_TXDONE_TXRING, mask); | |
910 | rt2x00_set_field32(®, CSR8_TXDONE_ATIMRING, mask); | |
911 | rt2x00_set_field32(®, CSR8_TXDONE_PRIORING, mask); | |
912 | rt2x00_set_field32(®, CSR8_RXDONE, mask); | |
913 | rt2x00pci_register_write(rt2x00dev, CSR8, reg); | |
914 | } | |
915 | ||
916 | static int rt2400pci_enable_radio(struct rt2x00_dev *rt2x00dev) | |
917 | { | |
918 | /* | |
919 | * Initialize all registers. | |
920 | */ | |
921 | if (rt2400pci_init_rings(rt2x00dev) || | |
922 | rt2400pci_init_registers(rt2x00dev) || | |
923 | rt2400pci_init_bbp(rt2x00dev)) { | |
924 | ERROR(rt2x00dev, "Register initialization failed.\n"); | |
925 | return -EIO; | |
926 | } | |
927 | ||
928 | /* | |
929 | * Enable interrupts. | |
930 | */ | |
931 | rt2400pci_toggle_irq(rt2x00dev, STATE_RADIO_IRQ_ON); | |
932 | ||
933 | /* | |
934 | * Enable LED | |
935 | */ | |
936 | rt2400pci_enable_led(rt2x00dev); | |
937 | ||
938 | return 0; | |
939 | } | |
940 | ||
941 | static void rt2400pci_disable_radio(struct rt2x00_dev *rt2x00dev) | |
942 | { | |
943 | u32 reg; | |
944 | ||
945 | /* | |
946 | * Disable LED | |
947 | */ | |
948 | rt2400pci_disable_led(rt2x00dev); | |
949 | ||
950 | rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0); | |
951 | ||
952 | /* | |
953 | * Disable synchronisation. | |
954 | */ | |
955 | rt2x00pci_register_write(rt2x00dev, CSR14, 0); | |
956 | ||
957 | /* | |
958 | * Cancel RX and TX. | |
959 | */ | |
960 | rt2x00pci_register_read(rt2x00dev, TXCSR0, ®); | |
961 | rt2x00_set_field32(®, TXCSR0_ABORT, 1); | |
962 | rt2x00pci_register_write(rt2x00dev, TXCSR0, reg); | |
963 | ||
964 | /* | |
965 | * Disable interrupts. | |
966 | */ | |
967 | rt2400pci_toggle_irq(rt2x00dev, STATE_RADIO_IRQ_OFF); | |
968 | } | |
969 | ||
970 | static int rt2400pci_set_state(struct rt2x00_dev *rt2x00dev, | |
971 | enum dev_state state) | |
972 | { | |
973 | u32 reg; | |
974 | unsigned int i; | |
975 | char put_to_sleep; | |
976 | char bbp_state; | |
977 | char rf_state; | |
978 | ||
979 | put_to_sleep = (state != STATE_AWAKE); | |
980 | ||
981 | rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®); | |
982 | rt2x00_set_field32(®, PWRCSR1_SET_STATE, 1); | |
983 | rt2x00_set_field32(®, PWRCSR1_BBP_DESIRE_STATE, state); | |
984 | rt2x00_set_field32(®, PWRCSR1_RF_DESIRE_STATE, state); | |
985 | rt2x00_set_field32(®, PWRCSR1_PUT_TO_SLEEP, put_to_sleep); | |
986 | rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg); | |
987 | ||
988 | /* | |
989 | * Device is not guaranteed to be in the requested state yet. | |
990 | * We must wait until the register indicates that the | |
991 | * device has entered the correct state. | |
992 | */ | |
993 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { | |
994 | rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®); | |
995 | bbp_state = rt2x00_get_field32(reg, PWRCSR1_BBP_CURR_STATE); | |
996 | rf_state = rt2x00_get_field32(reg, PWRCSR1_RF_CURR_STATE); | |
997 | if (bbp_state == state && rf_state == state) | |
998 | return 0; | |
999 | msleep(10); | |
1000 | } | |
1001 | ||
1002 | NOTICE(rt2x00dev, "Device failed to enter state %d, " | |
1003 | "current device state: bbp %d and rf %d.\n", | |
1004 | state, bbp_state, rf_state); | |
1005 | ||
1006 | return -EBUSY; | |
1007 | } | |
1008 | ||
1009 | static int rt2400pci_set_device_state(struct rt2x00_dev *rt2x00dev, | |
1010 | enum dev_state state) | |
1011 | { | |
1012 | int retval = 0; | |
1013 | ||
1014 | switch (state) { | |
1015 | case STATE_RADIO_ON: | |
1016 | retval = rt2400pci_enable_radio(rt2x00dev); | |
1017 | break; | |
1018 | case STATE_RADIO_OFF: | |
1019 | rt2400pci_disable_radio(rt2x00dev); | |
1020 | break; | |
1021 | case STATE_RADIO_RX_ON: | |
1022 | case STATE_RADIO_RX_OFF: | |
1023 | rt2400pci_toggle_rx(rt2x00dev, state); | |
1024 | break; | |
1025 | case STATE_DEEP_SLEEP: | |
1026 | case STATE_SLEEP: | |
1027 | case STATE_STANDBY: | |
1028 | case STATE_AWAKE: | |
1029 | retval = rt2400pci_set_state(rt2x00dev, state); | |
1030 | break; | |
1031 | default: | |
1032 | retval = -ENOTSUPP; | |
1033 | break; | |
1034 | } | |
1035 | ||
1036 | return retval; | |
1037 | } | |
1038 | ||
1039 | /* | |
1040 | * TX descriptor initialization | |
1041 | */ | |
1042 | static void rt2400pci_write_tx_desc(struct rt2x00_dev *rt2x00dev, | |
1043 | struct data_desc *txd, | |
4150c572 | 1044 | struct txdata_entry_desc *desc, |
95ea3627 ID |
1045 | struct ieee80211_hdr *ieee80211hdr, |
1046 | unsigned int length, | |
1047 | struct ieee80211_tx_control *control) | |
1048 | { | |
1049 | u32 word; | |
1050 | u32 signal = 0; | |
1051 | u32 service = 0; | |
1052 | u32 length_high = 0; | |
1053 | u32 length_low = 0; | |
1054 | ||
1055 | /* | |
1056 | * The PLCP values should be treated as if they | |
1057 | * were BBP values. | |
1058 | */ | |
1059 | rt2x00_set_field32(&signal, BBPCSR_VALUE, desc->signal); | |
1060 | rt2x00_set_field32(&signal, BBPCSR_REGNUM, 5); | |
1061 | rt2x00_set_field32(&signal, BBPCSR_BUSY, 1); | |
1062 | ||
1063 | rt2x00_set_field32(&service, BBPCSR_VALUE, desc->service); | |
1064 | rt2x00_set_field32(&service, BBPCSR_REGNUM, 6); | |
1065 | rt2x00_set_field32(&service, BBPCSR_BUSY, 1); | |
1066 | ||
1067 | rt2x00_set_field32(&length_high, BBPCSR_VALUE, desc->length_high); | |
1068 | rt2x00_set_field32(&length_high, BBPCSR_REGNUM, 7); | |
1069 | rt2x00_set_field32(&length_high, BBPCSR_BUSY, 1); | |
1070 | ||
1071 | rt2x00_set_field32(&length_low, BBPCSR_VALUE, desc->length_low); | |
1072 | rt2x00_set_field32(&length_low, BBPCSR_REGNUM, 8); | |
1073 | rt2x00_set_field32(&length_low, BBPCSR_BUSY, 1); | |
1074 | ||
1075 | /* | |
1076 | * Start writing the descriptor words. | |
1077 | */ | |
1078 | rt2x00_desc_read(txd, 2, &word); | |
1079 | rt2x00_set_field32(&word, TXD_W2_DATABYTE_COUNT, length); | |
1080 | rt2x00_desc_write(txd, 2, word); | |
1081 | ||
1082 | rt2x00_desc_read(txd, 3, &word); | |
1083 | rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, signal); | |
1084 | rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, service); | |
1085 | rt2x00_desc_write(txd, 3, word); | |
1086 | ||
1087 | rt2x00_desc_read(txd, 4, &word); | |
1088 | rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_LOW, length_low); | |
1089 | rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_HIGH, length_high); | |
1090 | rt2x00_desc_write(txd, 4, word); | |
1091 | ||
1092 | rt2x00_desc_read(txd, 0, &word); | |
1093 | rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1); | |
1094 | rt2x00_set_field32(&word, TXD_W0_VALID, 1); | |
1095 | rt2x00_set_field32(&word, TXD_W0_MORE_FRAG, | |
1096 | test_bit(ENTRY_TXD_MORE_FRAG, &desc->flags)); | |
1097 | rt2x00_set_field32(&word, TXD_W0_ACK, | |
1098 | !(control->flags & IEEE80211_TXCTL_NO_ACK)); | |
1099 | rt2x00_set_field32(&word, TXD_W0_TIMESTAMP, | |
1100 | test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags)); | |
1101 | rt2x00_set_field32(&word, TXD_W0_RTS, | |
1102 | test_bit(ENTRY_TXD_RTS_FRAME, &desc->flags)); | |
1103 | rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs); | |
1104 | rt2x00_set_field32(&word, TXD_W0_RETRY_MODE, | |
1105 | !!(control->flags & | |
1106 | IEEE80211_TXCTL_LONG_RETRY_LIMIT)); | |
1107 | rt2x00_desc_write(txd, 0, word); | |
1108 | } | |
1109 | ||
1110 | /* | |
1111 | * TX data initialization | |
1112 | */ | |
1113 | static void rt2400pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev, | |
1114 | unsigned int queue) | |
1115 | { | |
1116 | u32 reg; | |
1117 | ||
1118 | if (queue == IEEE80211_TX_QUEUE_BEACON) { | |
1119 | rt2x00pci_register_read(rt2x00dev, CSR14, ®); | |
1120 | if (!rt2x00_get_field32(reg, CSR14_BEACON_GEN)) { | |
1121 | rt2x00_set_field32(®, CSR14_BEACON_GEN, 1); | |
1122 | rt2x00pci_register_write(rt2x00dev, CSR14, reg); | |
1123 | } | |
1124 | return; | |
1125 | } | |
1126 | ||
1127 | rt2x00pci_register_read(rt2x00dev, TXCSR0, ®); | |
1128 | if (queue == IEEE80211_TX_QUEUE_DATA0) | |
1129 | rt2x00_set_field32(®, TXCSR0_KICK_PRIO, 1); | |
1130 | else if (queue == IEEE80211_TX_QUEUE_DATA1) | |
1131 | rt2x00_set_field32(®, TXCSR0_KICK_TX, 1); | |
1132 | else if (queue == IEEE80211_TX_QUEUE_AFTER_BEACON) | |
1133 | rt2x00_set_field32(®, TXCSR0_KICK_ATIM, 1); | |
1134 | rt2x00pci_register_write(rt2x00dev, TXCSR0, reg); | |
1135 | } | |
1136 | ||
1137 | /* | |
1138 | * RX control handlers | |
1139 | */ | |
4150c572 JB |
1140 | static void rt2400pci_fill_rxdone(struct data_entry *entry, |
1141 | struct rxdata_entry_desc *desc) | |
95ea3627 ID |
1142 | { |
1143 | struct data_desc *rxd = entry->priv; | |
1144 | u32 word0; | |
1145 | u32 word2; | |
1146 | ||
1147 | rt2x00_desc_read(rxd, 0, &word0); | |
1148 | rt2x00_desc_read(rxd, 2, &word2); | |
1149 | ||
4150c572 JB |
1150 | desc->flags = 0; |
1151 | if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR)) | |
1152 | desc->flags |= RX_FLAG_FAILED_FCS_CRC; | |
1153 | if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR)) | |
1154 | desc->flags |= RX_FLAG_FAILED_PLCP_CRC; | |
95ea3627 ID |
1155 | |
1156 | /* | |
1157 | * Obtain the status about this packet. | |
1158 | */ | |
4150c572 JB |
1159 | desc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL); |
1160 | desc->rssi = rt2x00_get_field32(word2, RXD_W2_RSSI) - | |
95ea3627 | 1161 | entry->ring->rt2x00dev->rssi_offset; |
4150c572 JB |
1162 | desc->ofdm = 0; |
1163 | desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT); | |
95ea3627 ID |
1164 | } |
1165 | ||
1166 | /* | |
1167 | * Interrupt functions. | |
1168 | */ | |
1169 | static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev, const int queue) | |
1170 | { | |
1171 | struct data_ring *ring = rt2x00lib_get_ring(rt2x00dev, queue); | |
1172 | struct data_entry *entry; | |
1173 | struct data_desc *txd; | |
1174 | u32 word; | |
1175 | int tx_status; | |
1176 | int retry; | |
1177 | ||
1178 | while (!rt2x00_ring_empty(ring)) { | |
1179 | entry = rt2x00_get_data_entry_done(ring); | |
1180 | txd = entry->priv; | |
1181 | rt2x00_desc_read(txd, 0, &word); | |
1182 | ||
1183 | if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) || | |
1184 | !rt2x00_get_field32(word, TXD_W0_VALID)) | |
1185 | break; | |
1186 | ||
1187 | /* | |
1188 | * Obtain the status about this packet. | |
1189 | */ | |
1190 | tx_status = rt2x00_get_field32(word, TXD_W0_RESULT); | |
1191 | retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT); | |
1192 | ||
1193 | rt2x00lib_txdone(entry, tx_status, retry); | |
1194 | ||
1195 | /* | |
1196 | * Make this entry available for reuse. | |
1197 | */ | |
1198 | entry->flags = 0; | |
1199 | rt2x00_set_field32(&word, TXD_W0_VALID, 0); | |
1200 | rt2x00_desc_write(txd, 0, word); | |
1201 | rt2x00_ring_index_done_inc(ring); | |
1202 | } | |
1203 | ||
1204 | /* | |
1205 | * If the data ring was full before the txdone handler | |
1206 | * we must make sure the packet queue in the mac80211 stack | |
1207 | * is reenabled when the txdone handler has finished. | |
1208 | */ | |
1209 | entry = ring->entry; | |
1210 | if (!rt2x00_ring_full(ring)) | |
1211 | ieee80211_wake_queue(rt2x00dev->hw, | |
1212 | entry->tx_status.control.queue); | |
1213 | } | |
1214 | ||
1215 | static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance) | |
1216 | { | |
1217 | struct rt2x00_dev *rt2x00dev = dev_instance; | |
1218 | u32 reg; | |
1219 | ||
1220 | /* | |
1221 | * Get the interrupt sources & saved to local variable. | |
1222 | * Write register value back to clear pending interrupts. | |
1223 | */ | |
1224 | rt2x00pci_register_read(rt2x00dev, CSR7, ®); | |
1225 | rt2x00pci_register_write(rt2x00dev, CSR7, reg); | |
1226 | ||
1227 | if (!reg) | |
1228 | return IRQ_NONE; | |
1229 | ||
1230 | if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags)) | |
1231 | return IRQ_HANDLED; | |
1232 | ||
1233 | /* | |
1234 | * Handle interrupts, walk through all bits | |
1235 | * and run the tasks, the bits are checked in order of | |
1236 | * priority. | |
1237 | */ | |
1238 | ||
1239 | /* | |
1240 | * 1 - Beacon timer expired interrupt. | |
1241 | */ | |
1242 | if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE)) | |
1243 | rt2x00lib_beacondone(rt2x00dev); | |
1244 | ||
1245 | /* | |
1246 | * 2 - Rx ring done interrupt. | |
1247 | */ | |
1248 | if (rt2x00_get_field32(reg, CSR7_RXDONE)) | |
1249 | rt2x00pci_rxdone(rt2x00dev); | |
1250 | ||
1251 | /* | |
1252 | * 3 - Atim ring transmit done interrupt. | |
1253 | */ | |
1254 | if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING)) | |
1255 | rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON); | |
1256 | ||
1257 | /* | |
1258 | * 4 - Priority ring transmit done interrupt. | |
1259 | */ | |
1260 | if (rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING)) | |
1261 | rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA0); | |
1262 | ||
1263 | /* | |
1264 | * 5 - Tx ring transmit done interrupt. | |
1265 | */ | |
1266 | if (rt2x00_get_field32(reg, CSR7_TXDONE_TXRING)) | |
1267 | rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA1); | |
1268 | ||
1269 | return IRQ_HANDLED; | |
1270 | } | |
1271 | ||
1272 | /* | |
1273 | * Device probe functions. | |
1274 | */ | |
1275 | static int rt2400pci_validate_eeprom(struct rt2x00_dev *rt2x00dev) | |
1276 | { | |
1277 | struct eeprom_93cx6 eeprom; | |
1278 | u32 reg; | |
1279 | u16 word; | |
1280 | u8 *mac; | |
1281 | ||
1282 | rt2x00pci_register_read(rt2x00dev, CSR21, ®); | |
1283 | ||
1284 | eeprom.data = rt2x00dev; | |
1285 | eeprom.register_read = rt2400pci_eepromregister_read; | |
1286 | eeprom.register_write = rt2400pci_eepromregister_write; | |
1287 | eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ? | |
1288 | PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66; | |
1289 | eeprom.reg_data_in = 0; | |
1290 | eeprom.reg_data_out = 0; | |
1291 | eeprom.reg_data_clock = 0; | |
1292 | eeprom.reg_chip_select = 0; | |
1293 | ||
1294 | eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom, | |
1295 | EEPROM_SIZE / sizeof(u16)); | |
1296 | ||
1297 | /* | |
1298 | * Start validation of the data that has been read. | |
1299 | */ | |
1300 | mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0); | |
1301 | if (!is_valid_ether_addr(mac)) { | |
0795af57 JP |
1302 | DECLARE_MAC_BUF(macbuf); |
1303 | ||
95ea3627 | 1304 | random_ether_addr(mac); |
0795af57 | 1305 | EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac)); |
95ea3627 ID |
1306 | } |
1307 | ||
1308 | rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word); | |
1309 | if (word == 0xffff) { | |
1310 | ERROR(rt2x00dev, "Invalid EEPROM data detected.\n"); | |
1311 | return -EINVAL; | |
1312 | } | |
1313 | ||
1314 | return 0; | |
1315 | } | |
1316 | ||
1317 | static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev) | |
1318 | { | |
1319 | u32 reg; | |
1320 | u16 value; | |
1321 | u16 eeprom; | |
1322 | ||
1323 | /* | |
1324 | * Read EEPROM word for configuration. | |
1325 | */ | |
1326 | rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom); | |
1327 | ||
1328 | /* | |
1329 | * Identify RF chipset. | |
1330 | */ | |
1331 | value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE); | |
1332 | rt2x00pci_register_read(rt2x00dev, CSR0, ®); | |
1333 | rt2x00_set_chip(rt2x00dev, RT2460, value, reg); | |
1334 | ||
1335 | if (!rt2x00_rf(&rt2x00dev->chip, RF2420) && | |
1336 | !rt2x00_rf(&rt2x00dev->chip, RF2421)) { | |
1337 | ERROR(rt2x00dev, "Invalid RF chipset detected.\n"); | |
1338 | return -ENODEV; | |
1339 | } | |
1340 | ||
1341 | /* | |
1342 | * Identify default antenna configuration. | |
1343 | */ | |
1344 | rt2x00dev->hw->conf.antenna_sel_tx = | |
1345 | rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT); | |
1346 | rt2x00dev->hw->conf.antenna_sel_rx = | |
1347 | rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT); | |
1348 | ||
1349 | /* | |
1350 | * Store led mode, for correct led behaviour. | |
1351 | */ | |
1352 | rt2x00dev->led_mode = | |
1353 | rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE); | |
1354 | ||
1355 | /* | |
1356 | * Detect if this device has an hardware controlled radio. | |
1357 | */ | |
81873e9c | 1358 | #ifdef CONFIG_RT2400PCI_RFKILL |
95ea3627 | 1359 | if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) |
066cb637 | 1360 | __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags); |
81873e9c | 1361 | #endif /* CONFIG_RT2400PCI_RFKILL */ |
95ea3627 ID |
1362 | |
1363 | /* | |
1364 | * Check if the BBP tuning should be enabled. | |
1365 | */ | |
1366 | if (!rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_AGCVGC_TUNING)) | |
1367 | __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags); | |
1368 | ||
1369 | return 0; | |
1370 | } | |
1371 | ||
1372 | /* | |
1373 | * RF value list for RF2420 & RF2421 | |
1374 | * Supports: 2.4 GHz | |
1375 | */ | |
1376 | static const struct rf_channel rf_vals_bg[] = { | |
1377 | { 1, 0x00022058, 0x000c1fda, 0x00000101, 0 }, | |
1378 | { 2, 0x00022058, 0x000c1fee, 0x00000101, 0 }, | |
1379 | { 3, 0x00022058, 0x000c2002, 0x00000101, 0 }, | |
1380 | { 4, 0x00022058, 0x000c2016, 0x00000101, 0 }, | |
1381 | { 5, 0x00022058, 0x000c202a, 0x00000101, 0 }, | |
1382 | { 6, 0x00022058, 0x000c203e, 0x00000101, 0 }, | |
1383 | { 7, 0x00022058, 0x000c2052, 0x00000101, 0 }, | |
1384 | { 8, 0x00022058, 0x000c2066, 0x00000101, 0 }, | |
1385 | { 9, 0x00022058, 0x000c207a, 0x00000101, 0 }, | |
1386 | { 10, 0x00022058, 0x000c208e, 0x00000101, 0 }, | |
1387 | { 11, 0x00022058, 0x000c20a2, 0x00000101, 0 }, | |
1388 | { 12, 0x00022058, 0x000c20b6, 0x00000101, 0 }, | |
1389 | { 13, 0x00022058, 0x000c20ca, 0x00000101, 0 }, | |
1390 | { 14, 0x00022058, 0x000c20fa, 0x00000101, 0 }, | |
1391 | }; | |
1392 | ||
1393 | static void rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev) | |
1394 | { | |
1395 | struct hw_mode_spec *spec = &rt2x00dev->spec; | |
1396 | u8 *txpower; | |
1397 | unsigned int i; | |
1398 | ||
1399 | /* | |
1400 | * Initialize all hw fields. | |
1401 | */ | |
4150c572 | 1402 | rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING; |
95ea3627 ID |
1403 | rt2x00dev->hw->extra_tx_headroom = 0; |
1404 | rt2x00dev->hw->max_signal = MAX_SIGNAL; | |
1405 | rt2x00dev->hw->max_rssi = MAX_RX_SSI; | |
1406 | rt2x00dev->hw->queues = 2; | |
1407 | ||
1408 | SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_pci(rt2x00dev)->dev); | |
1409 | SET_IEEE80211_PERM_ADDR(rt2x00dev->hw, | |
1410 | rt2x00_eeprom_addr(rt2x00dev, | |
1411 | EEPROM_MAC_ADDR_0)); | |
1412 | ||
1413 | /* | |
1414 | * Convert tx_power array in eeprom. | |
1415 | */ | |
1416 | txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START); | |
1417 | for (i = 0; i < 14; i++) | |
1418 | txpower[i] = TXPOWER_FROM_DEV(txpower[i]); | |
1419 | ||
1420 | /* | |
1421 | * Initialize hw_mode information. | |
1422 | */ | |
1423 | spec->num_modes = 1; | |
1424 | spec->num_rates = 4; | |
1425 | spec->tx_power_a = NULL; | |
1426 | spec->tx_power_bg = txpower; | |
1427 | spec->tx_power_default = DEFAULT_TXPOWER; | |
1428 | ||
1429 | spec->num_channels = ARRAY_SIZE(rf_vals_bg); | |
1430 | spec->channels = rf_vals_bg; | |
1431 | } | |
1432 | ||
1433 | static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev) | |
1434 | { | |
1435 | int retval; | |
1436 | ||
1437 | /* | |
1438 | * Allocate eeprom data. | |
1439 | */ | |
1440 | retval = rt2400pci_validate_eeprom(rt2x00dev); | |
1441 | if (retval) | |
1442 | return retval; | |
1443 | ||
1444 | retval = rt2400pci_init_eeprom(rt2x00dev); | |
1445 | if (retval) | |
1446 | return retval; | |
1447 | ||
1448 | /* | |
1449 | * Initialize hw specifications. | |
1450 | */ | |
1451 | rt2400pci_probe_hw_mode(rt2x00dev); | |
1452 | ||
1453 | /* | |
1454 | * This device requires the beacon ring | |
1455 | */ | |
066cb637 | 1456 | __set_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags); |
95ea3627 ID |
1457 | |
1458 | /* | |
1459 | * Set the rssi offset. | |
1460 | */ | |
1461 | rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET; | |
1462 | ||
1463 | return 0; | |
1464 | } | |
1465 | ||
1466 | /* | |
1467 | * IEEE80211 stack callback functions. | |
1468 | */ | |
4150c572 JB |
1469 | static void rt2400pci_configure_filter(struct ieee80211_hw *hw, |
1470 | unsigned int changed_flags, | |
1471 | unsigned int *total_flags, | |
1472 | int mc_count, | |
1473 | struct dev_addr_list *mc_list) | |
1474 | { | |
1475 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1476 | struct interface *intf = &rt2x00dev->interface; | |
1477 | u32 reg; | |
1478 | ||
1479 | /* | |
1480 | * Mask off any flags we are going to ignore from | |
1481 | * the total_flags field. | |
1482 | */ | |
1483 | *total_flags &= | |
1484 | FIF_ALLMULTI | | |
1485 | FIF_FCSFAIL | | |
1486 | FIF_PLCPFAIL | | |
1487 | FIF_CONTROL | | |
1488 | FIF_OTHER_BSS | | |
1489 | FIF_PROMISC_IN_BSS; | |
1490 | ||
1491 | /* | |
1492 | * Apply some rules to the filters: | |
1493 | * - Some filters imply different filters to be set. | |
1494 | * - Some things we can't filter out at all. | |
1495 | * - Some filters are set based on interface type. | |
1496 | */ | |
1497 | *total_flags |= FIF_ALLMULTI; | |
5886d0db ID |
1498 | if (*total_flags & FIF_OTHER_BSS || |
1499 | *total_flags & FIF_PROMISC_IN_BSS) | |
4150c572 JB |
1500 | *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS; |
1501 | if (is_interface_type(intf, IEEE80211_IF_TYPE_AP)) | |
1502 | *total_flags |= FIF_PROMISC_IN_BSS; | |
1503 | ||
1504 | /* | |
1505 | * Check if there is any work left for us. | |
1506 | */ | |
1507 | if (intf->filter == *total_flags) | |
1508 | return; | |
1509 | intf->filter = *total_flags; | |
1510 | ||
1511 | /* | |
1512 | * Start configuration steps. | |
1513 | * Note that the version error will always be dropped | |
1514 | * since there is no filter for it at this time. | |
1515 | */ | |
1516 | rt2x00pci_register_read(rt2x00dev, RXCSR0, ®); | |
1517 | rt2x00_set_field32(®, RXCSR0_DROP_CRC, | |
1518 | !(*total_flags & FIF_FCSFAIL)); | |
1519 | rt2x00_set_field32(®, RXCSR0_DROP_PHYSICAL, | |
1520 | !(*total_flags & FIF_PLCPFAIL)); | |
1521 | rt2x00_set_field32(®, RXCSR0_DROP_CONTROL, | |
1522 | !(*total_flags & FIF_CONTROL)); | |
1523 | rt2x00_set_field32(®, RXCSR0_DROP_NOT_TO_ME, | |
1524 | !(*total_flags & FIF_PROMISC_IN_BSS)); | |
1525 | rt2x00_set_field32(®, RXCSR0_DROP_TODS, | |
1526 | !(*total_flags & FIF_PROMISC_IN_BSS)); | |
1527 | rt2x00_set_field32(®, RXCSR0_DROP_VERSION_ERROR, 1); | |
1528 | rt2x00pci_register_write(rt2x00dev, RXCSR0, reg); | |
1529 | } | |
1530 | ||
95ea3627 ID |
1531 | static int rt2400pci_set_retry_limit(struct ieee80211_hw *hw, |
1532 | u32 short_retry, u32 long_retry) | |
1533 | { | |
1534 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1535 | u32 reg; | |
1536 | ||
1537 | rt2x00pci_register_read(rt2x00dev, CSR11, ®); | |
1538 | rt2x00_set_field32(®, CSR11_LONG_RETRY, long_retry); | |
1539 | rt2x00_set_field32(®, CSR11_SHORT_RETRY, short_retry); | |
1540 | rt2x00pci_register_write(rt2x00dev, CSR11, reg); | |
1541 | ||
1542 | return 0; | |
1543 | } | |
1544 | ||
1545 | static int rt2400pci_conf_tx(struct ieee80211_hw *hw, | |
1546 | int queue, | |
1547 | const struct ieee80211_tx_queue_params *params) | |
1548 | { | |
1549 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1550 | ||
1551 | /* | |
1552 | * We don't support variating cw_min and cw_max variables | |
1553 | * per queue. So by default we only configure the TX queue, | |
1554 | * and ignore all other configurations. | |
1555 | */ | |
1556 | if (queue != IEEE80211_TX_QUEUE_DATA0) | |
1557 | return -EINVAL; | |
1558 | ||
1559 | if (rt2x00mac_conf_tx(hw, queue, params)) | |
1560 | return -EINVAL; | |
1561 | ||
1562 | /* | |
1563 | * Write configuration to register. | |
1564 | */ | |
1565 | rt2400pci_config_cw(rt2x00dev, &rt2x00dev->tx->tx_params); | |
1566 | ||
1567 | return 0; | |
1568 | } | |
1569 | ||
1570 | static u64 rt2400pci_get_tsf(struct ieee80211_hw *hw) | |
1571 | { | |
1572 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1573 | u64 tsf; | |
1574 | u32 reg; | |
1575 | ||
1576 | rt2x00pci_register_read(rt2x00dev, CSR17, ®); | |
1577 | tsf = (u64) rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32; | |
1578 | rt2x00pci_register_read(rt2x00dev, CSR16, ®); | |
1579 | tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER); | |
1580 | ||
1581 | return tsf; | |
1582 | } | |
1583 | ||
1584 | static void rt2400pci_reset_tsf(struct ieee80211_hw *hw) | |
1585 | { | |
1586 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1587 | ||
1588 | rt2x00pci_register_write(rt2x00dev, CSR16, 0); | |
1589 | rt2x00pci_register_write(rt2x00dev, CSR17, 0); | |
1590 | } | |
1591 | ||
1592 | static int rt2400pci_tx_last_beacon(struct ieee80211_hw *hw) | |
1593 | { | |
1594 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1595 | u32 reg; | |
1596 | ||
1597 | rt2x00pci_register_read(rt2x00dev, CSR15, ®); | |
1598 | return rt2x00_get_field32(reg, CSR15_BEACON_SENT); | |
1599 | } | |
1600 | ||
1601 | static const struct ieee80211_ops rt2400pci_mac80211_ops = { | |
1602 | .tx = rt2x00mac_tx, | |
4150c572 JB |
1603 | .start = rt2x00mac_start, |
1604 | .stop = rt2x00mac_stop, | |
95ea3627 ID |
1605 | .add_interface = rt2x00mac_add_interface, |
1606 | .remove_interface = rt2x00mac_remove_interface, | |
1607 | .config = rt2x00mac_config, | |
1608 | .config_interface = rt2x00mac_config_interface, | |
4150c572 | 1609 | .configure_filter = rt2400pci_configure_filter, |
95ea3627 ID |
1610 | .get_stats = rt2x00mac_get_stats, |
1611 | .set_retry_limit = rt2400pci_set_retry_limit, | |
1612 | .conf_tx = rt2400pci_conf_tx, | |
1613 | .get_tx_stats = rt2x00mac_get_tx_stats, | |
1614 | .get_tsf = rt2400pci_get_tsf, | |
1615 | .reset_tsf = rt2400pci_reset_tsf, | |
1616 | .beacon_update = rt2x00pci_beacon_update, | |
1617 | .tx_last_beacon = rt2400pci_tx_last_beacon, | |
1618 | }; | |
1619 | ||
1620 | static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = { | |
1621 | .irq_handler = rt2400pci_interrupt, | |
1622 | .probe_hw = rt2400pci_probe_hw, | |
1623 | .initialize = rt2x00pci_initialize, | |
1624 | .uninitialize = rt2x00pci_uninitialize, | |
1625 | .set_device_state = rt2400pci_set_device_state, | |
95ea3627 | 1626 | .rfkill_poll = rt2400pci_rfkill_poll, |
95ea3627 ID |
1627 | .link_stats = rt2400pci_link_stats, |
1628 | .reset_tuner = rt2400pci_reset_tuner, | |
1629 | .link_tuner = rt2400pci_link_tuner, | |
1630 | .write_tx_desc = rt2400pci_write_tx_desc, | |
1631 | .write_tx_data = rt2x00pci_write_tx_data, | |
1632 | .kick_tx_queue = rt2400pci_kick_tx_queue, | |
1633 | .fill_rxdone = rt2400pci_fill_rxdone, | |
1634 | .config_mac_addr = rt2400pci_config_mac_addr, | |
1635 | .config_bssid = rt2400pci_config_bssid, | |
95ea3627 ID |
1636 | .config_type = rt2400pci_config_type, |
1637 | .config = rt2400pci_config, | |
1638 | }; | |
1639 | ||
1640 | static const struct rt2x00_ops rt2400pci_ops = { | |
1641 | .name = DRV_NAME, | |
1642 | .rxd_size = RXD_DESC_SIZE, | |
1643 | .txd_size = TXD_DESC_SIZE, | |
1644 | .eeprom_size = EEPROM_SIZE, | |
1645 | .rf_size = RF_SIZE, | |
1646 | .lib = &rt2400pci_rt2x00_ops, | |
1647 | .hw = &rt2400pci_mac80211_ops, | |
1648 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS | |
1649 | .debugfs = &rt2400pci_rt2x00debug, | |
1650 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ | |
1651 | }; | |
1652 | ||
1653 | /* | |
1654 | * RT2400pci module information. | |
1655 | */ | |
1656 | static struct pci_device_id rt2400pci_device_table[] = { | |
1657 | { PCI_DEVICE(0x1814, 0x0101), PCI_DEVICE_DATA(&rt2400pci_ops) }, | |
1658 | { 0, } | |
1659 | }; | |
1660 | ||
1661 | MODULE_AUTHOR(DRV_PROJECT); | |
1662 | MODULE_VERSION(DRV_VERSION); | |
1663 | MODULE_DESCRIPTION("Ralink RT2400 PCI & PCMCIA Wireless LAN driver."); | |
1664 | MODULE_SUPPORTED_DEVICE("Ralink RT2460 PCI & PCMCIA chipset based cards"); | |
1665 | MODULE_DEVICE_TABLE(pci, rt2400pci_device_table); | |
1666 | MODULE_LICENSE("GPL"); | |
1667 | ||
1668 | static struct pci_driver rt2400pci_driver = { | |
1669 | .name = DRV_NAME, | |
1670 | .id_table = rt2400pci_device_table, | |
1671 | .probe = rt2x00pci_probe, | |
1672 | .remove = __devexit_p(rt2x00pci_remove), | |
1673 | .suspend = rt2x00pci_suspend, | |
1674 | .resume = rt2x00pci_resume, | |
1675 | }; | |
1676 | ||
1677 | static int __init rt2400pci_init(void) | |
1678 | { | |
1679 | return pci_register_driver(&rt2400pci_driver); | |
1680 | } | |
1681 | ||
1682 | static void __exit rt2400pci_exit(void) | |
1683 | { | |
1684 | pci_unregister_driver(&rt2400pci_driver); | |
1685 | } | |
1686 | ||
1687 | module_init(rt2400pci_init); | |
1688 | module_exit(rt2400pci_exit); |